从DataGridCell获取控件 [英] Getting a control from a DataGridCell

问题描述

假设我在DataGridTemplateColumn中有一个任意的控件，我想知道如何获取控件，因为我已经检索到包含该控件的DataGridCell。

我的包含DataGrid的XAML文件如下：

  < DataGrid Name =dgMovement> 
 ... 
< DataGridTemplateColumn标题=目标％> 
< DataGridTemplateColumn.CellTemplate> 
< DataTemplate> 
< vi：PercentageEditor Value ={Binding TargetPercentage，Mode = TwoWay，
 UpdateSourceTrigger = PropertyChanged}Width =100px
 cal：Message.Attach =[Event PreviewLostKeyboardFocus] = [Action ChangeTargetPercentage]; [Event PreviewGotKeyboardFocus] = [Action OnFocus]
 Name =aa/> 
< / DataTemplate> 
< /DataGridTemplateColumn.CellTemplate> 
< / DataGridTemplateColumn> ... 
  

我使用扩展方法检索了DataGridCell，如下所示：

  DataGridCell cell = view.dgMovement2.GetCell（index，6）; 
  

发现静态类中包含的扩展方法这里

问题是，如何获取百分比编辑器，一旦我得到了DataGridCell？有谁能够帮助我？任何帮助将不胜感激。谢谢！

解决方案

您可以使用控件的名称在模板中找到它，例如

 < DataGridTemplateColumn> 
< DataGridTemplateColumn.CellTemplate> 
< DataTemplate> 
< uc：Bogus x：Name =rootItemsSource ={Binding Machines}/> 
< / DataTemplate> 
< /DataGridTemplateColumn.CellTemplate> 
< / DataGridTemplateColumn> 
  

  var cell = dataGrid。 GetCell（5，0）; 
 var cp =（ContentPresenter）cell.Content; 
 var bogus =（Bogus）cp.ContentTemplate.FindName（root，cp）; 
  

---

请注意，这通常不应该需要修改模板控件大部分可以使用数据绑定，附加属性和事件单独完成。一般来说，我将通过代码限制模板访问到自定义控件（通常有指定部分）。

Assuming that I have an arbitrary control inside a DataGridTemplateColumn, I wish to know how to get the control, given that I have retrieved the DataGridCell which contains that control.

My XAML file containing the DataGrid is as follows:

    <DataGrid Name="dgMovement">
...    
    <DataGridTemplateColumn Header="Target %">
       <DataGridTemplateColumn.CellTemplate>
          <DataTemplate>
            <vi:PercentageEditor Value="{Binding TargetPercentage, Mode=TwoWay,
                      UpdateSourceTrigger=PropertyChanged}" Width="100px"  
                      cal:Message.Attach="[Event PreviewLostKeyboardFocus] = [Action ChangeTargetPercentage];[Event PreviewGotKeyboardFocus] = [Action OnFocus]" 
                      Name="aa" />
          </DataTemplate>
       </DataGridTemplateColumn.CellTemplate>
    </DataGridTemplateColumn>...

I retrieved the DataGridCell using extension methods as follows:

DataGridCell cell = view.dgMovement2.GetCell(index, 6);

The extension methods, contained in a static class is found here

The question is, how to I retrieve the "PercentageEditor", once I got the DataGridCell? Can anybody help me? Any help would be greatly appreciated. Thanks!

解决方案

You can use the name of the control to find it in the template, e.g.

<DataGridTemplateColumn>
    <DataGridTemplateColumn.CellTemplate>
        <DataTemplate>
            <uc:Bogus x:Name="root" ItemsSource="{Binding Machines}"/>
        </DataTemplate>
    </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>

var cell = dataGrid.GetCell(5, 0);
var cp = (ContentPresenter)cell.Content;
var bogus = (Bogus)cp.ContentTemplate.FindName("root", cp);

---

Note however that this usually should not be necessary as modifying templated controls for the most part can be done using data binding, attached properties and events alone. In general i would restrict template access via code to custom controls (which often have designated parts).

这篇关于从DataGridCell获取控件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！